Recommended principles for stream purification legislation in Oregon
By: prepared by John Ronchetto, research assistant, State planning board, June 15, 1937.
Contributors: Ronchetto, John Paul, 1905-
Published: 1937
Place of publication: [Portland
Language: eng
Subjects: Water -- Pollution.; Water -- Law and legislation -- Oregon.
Notes: Caption-title.

Mimeographed.